Understand the lock before relying on it
Find out whether the included lock secures the main opening, a laptop section or another compartment. Check how it is operated and whether the zipper arrangement works with it. A lock can affect convenience as well as access control; a bag you repeatedly unlock for your phone may not suit your routine.
Read the weather wording precisely
The supplied title says water resistant, without naming a test standard or explaining seam and zipper construction. Ask what that means for the complete bag if wet-weather commuting is central to the purchase. Independently verify the laptop pocket dimensions and its padding before deciding whether additional protection for your particular computer is appropriate.
